I cannot seem to export as igs and stp, which are vitally important as I need to continue work on some models in Alibre Design. Whenever I try to export the program just hangs, the does that spinning thing. If I try to minimize the window I get a message that the program is not responding and do I want to shut down or wait or look for a solution on the internet.

The model is 84Mb in size. Not the largest be any means. Also I tried import the 3dm straight into Alibre but got the following result:










Why won't it export?